參數(shù)資料
型號: T9000
廠商: Lineage Power
英文描述: ISDN Network Termination Node (NTN) Device(ISDN網(wǎng)絡(luò)終端節(jié)點器件)
中文描述: ISDN網(wǎng)絡(luò)終端節(jié)點(新界西)設(shè)備(ISDN網(wǎng)網(wǎng)絡(luò)終端節(jié)點器件)
文件頁數(shù): 101/126頁
文件大小: 1523K
代理商: T9000
Lucent Technologies Inc.
101
Advance Data Sheet
April 2000
ISDN Network Termination Node (NTN) Device
T9000
12 PWM Module
(continued)
12.6 PWM Module Register Set
(continued)
Table 105. PW0VH: Pulse-Width Modulator 0 Pulse-Width Value, High Byte (0x45)
Table 106. PW0VL: Pulse-Width Modulator 0 Pulse-Width Value, Low Byte (0x46)
Reg
PW0VH
RESET
R/W
R/W
Default
Bit 7
PW0VH7
Bit 6
PW0VH6
Bit 5
PW0VH5
Bit 4
PW0VH4
Bit 3
PW0VH3
Bit 2
PW0VH2
Bit 1
PW0VH1
Bit 0
PW0VH0
Bit #
7—0
Symbol
PW0VH[7:0]
Name/Description
PWM
0 Pulse-Width Value, High Byte.
When manual pulse-width control is pro-
grammed, the pulse-width high can be expressed as:
PW0 = PW0VH[7:0] * tick when PW0R.[1:0] = 11.
PW0 = PW0VH[7:1] * tick when PW0R.[1:0] = 10.
PW0 = PW0VH[7:2] * tick when PW0R.[1:0] = 01.
PW0 = PW0VH[7:3] * tick when PW0R.[1:0] = 00.
If auto mode is selected, it contains the high-order byte of the programmed sine fre-
quency (Fs).
Reg
PW0VL
RESET
R/W
R/W
Default
Bit 7
PW0VL7
Bit 6
PW0VL6
Bit 5
PW0VL5
Bit 4
PW0VL4
Bit 3
PW0VL3
Bit 2
PW0VL2
Bit 1
PW0VL1
Bit 0
PW0VL0
Bit #
7—0
Symbol
PW0VL[7:0]
Name/Description
PWM
0 Pulse-Width Value, Low Byte.
Its function depends on the operation mode
selected.
When auto operation mode is selected (PW0CF[PW0AUTO] = 1), it contains the low-
order byte of the programmed sine frequency (Fs).
When manual/timer operation mode is selected (PW0CF[PW0AUTO] = 0), it defines the
rate at which PWIR[PW0I] interrupt register bit will be asserted:
PWIR[PW0I] assertion rate = PP0 x (PW0VL + 1).
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